Regi Penxten (born Reginald Paul Stefan Penxten on March 4, 1976) is a Belgian DJ and record producer, of many dance and trance projects in Belgium, including Milk Inc. and Sylver.

Better known by his mononym Regi, he has released three solo albums, which all reached the top ten of the Belgian album charts: Best Of (2005), Registrated (2007) and Registrated 2 (2010). Regi also had a number of charting singles in the Belgian Ultratop charts and two charting in the Netherlands.